Easter Eggs

Unlock a new level, ''Lost Wonder''

Opens (unlocks) a new, hidden level titled: "the Door to A Mystic Treasure."
Start or continue a level. Click the Menu option on the right side of the game window. (Alternatively, open the Options screen, from the main window.)
Select the "Credits" option.
Allow the list of creator names scroll to the end.
A cube (block) will appear and scroll up from the bottom of the window.
Drag and drop the block on the shoulders of the worker that appears to be holding an invisible block. The worker is located on the lower right side of the window.
If the block is placed properly, a message will appear stating:
Victory!
The door to a Mystic Treasure has been opened. A new LOST WONDER is now available!
Click ok to close, and play the new level. If a level was in play when the above actions were followed, the level will continue after you complete or quit the unlocked level.